Pump-plunger



H. M. BOE.

PUMP PLUNGER.

APPLICATION FILED NOV. 22. l9l9 PatentedAug. N219 barrel on the upstroke oi the plunger.

HAN? Ill. EOE, 0F llGYEIIlEl'NEAPGLIS, ILJIINNESOTA.

hpypiisation filed Hovember To all whom it may vco /mam lie it known that l, HANS l /l. Boil, a ciliaen of the United Slat s, resident of Minneapolis, county of -.lilill1@)i1l State of Minne- 5043a, have invented certain. new and; useful Improvements in Pump-Plungeis, of which the following is a, specification.

The object of my invention is to .1310: wide a plunger of such construction that o leakage between the Wall of the pump barrel and the plunger will bereclucecl to a minimum.

A. farther object is to provide a plunger of simple construction and one which will be inexpensive to maintain and be strong and. (lurahle.

The invention consisis generally in various oonstructioh's and combinations, all as hereinafter described and particularly pointed out in the claims. ln the'aceompaiiying drawings forming part of this specification,

Figure 1 is a vertical secti'hal VlBW through a pump and plunger embmlying my invention, showing it adapted for connection with a container.

Fig. is a sectional View through :1 P01- tion of the plunger,

is a top yie'w of the phmgei.

in the thawing, 2 represents a tank or conminer having a leg 3 and easier supports l upon which the tank is moved conveniently from place to place. All; the bottom of the tank an mile; or disphai'ge port leading to a passage 9 which 'iermihates in an elbow 10 into which a nipple 11 tapped. 1?, repa pum p head connected with the agape]? veml of the nipple and. containing a chambm: 13 the nipple having a seal; 14: for a ball valve 15 "which normally rests by gravity upon the seat and closes the passage to the nipple. seated on the con'milmieates therewith through a passage 15. a pin 1'? being mounted in ihe walls of said head and bridging said passage to prevent the valve if? from lw'aggg' drawn into pin 17" is also provided in the Wall of the head 12 to limit the movement oi the ball valve 15 toward the discharge poi-t of the head. A bistoil rod 18 is mounted in said 1-,. rl' o i oaiiel and has a head 19 a. s um: um that is "mapped to receive a ooh; 5241: and pieton caps 21 am placed back to had: on Saul hell: and seated. against fifll l lhlul;

A. gamp'hai'i'el 1.5 is top of the pump head 12 and Elpecifieation of Letters Patent.

ion cups oi flexible material pl;

1915). Serial No.

clamped securely thereon by ihe l; 0.2? said bolt. These (ups aie pith" leather oisome oihci' suitable lexmle uiai'e" rial and their edges are held in con the inner Walls of the bari'el, pw'l'eieb means of nietailie {lials 22. These (iii-liar, prefer to make thin sheet brass. on or span to a suitable shape, and. a 1 series of radial slits in foii'n a series on $5 Pll11;3;-ll which when the edge o to it the flexible cup of another slightly on one .e, as in Fig. and have "the lam :tion 0 the flexible edges of the c Wa ls of. the barrel with a. y in. making these disks pr." sheet brass and out a series inihe thereof and iii folded to the form. shown in l eilgas will slide by edges being slightly ol g a: air; of c" ting the all J that it is only her'ea to fold; to the form shown in will aaiiiiiie 25., each lo other and them we oaliwaiwl swing-like 'Jl'QEJSIUH to ho. edges of ti caps in yield u the Walls of the pump bar IOll has. a Mel: 2:. thei'eon engage teeth of a. pinion 2h i'i'zoimled azul above the barrel a pipe havia I upper end mounted in the top oi" the and forming; a gnielu 'l OX the l'ltipl'UPi'zf g piston l()\l. The pump head l2 also has a gravity valve 52-9 normally (nosfig lha leading to the hose ill) lhi'ougl which illii lulu-hating malarial (l ha d b the milieu of ihe plhngg m'.

l n l. 'iose he a sailablo nozzle 31 and a valve 232.

ll claim as my invention:

1. A pump plimger comprising: a 1 05.,

- (l l) bachaiid having means for secuiln the end of said rod, metallic hi i a wilhin said caps an. having a radial sliifis in Their pm ipheial e6 of spring tongues being formed by the edges of abutii U lee la each other ainlsaitl ton-hes EXQf-Cbli' Ward spring-like pressure on lhe sahl piston cups.

3. fl piston comprising a lltaihle cap. a. 11;; melalliv rlislq fitting lhei'eih 21ml l'lllwli a. sea-lea pei'ipheral 'i'ailial i mh'if gig Lsmmm sariesof tongues which, whfin said disk is tongues which, when said disk is fold-ed to folded Z0 fit the cup 'lapleach nther and exfit the cup, lap each other andexern a yieii- @115 a yielding pressure on the wails of the ing pressure on the Walls ofthe cup. 16? cup, in witness wherenf, I havse hereunto set 3. A isfan. comprising a flexible cup, 21 my hand this 17th day of November 1919. disk fittmg therein and having a; series of v peripheral radial slits forming a series of IIANS M, EOE! 

